1631124 has 48 divisors (see below), whose sum is σ = 4616640. Its totient is φ = 493920.

The previous prime is 1631117. The next prime is 1631143. The reversal of 1631124 is 4211361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 1631097 and 1631106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (96180).

2^1631124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1631124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2308320).

1631124 is an abundant number, since it is smaller than the sum of its proper divisors (2985516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1631124 is a wasteful number, since it uses less digits than its factorization.

1631124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1389 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1631124 is about 1277.1546499935. The cubic root of 1631124 is about 117.7142371818.

Adding to 1631124 its reverse (4211361), we get a palindrome (5842485).

The spelling of 1631124 in words is "one million, six hundred thirty-one thousand, one hundred twenty-four".